Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...194l..35h&link_type=abstract
Astrophysical Journal, vol. 194, Nov. 15, 1974, pt. 2, p. L35-L37.
Astronomy and Astrophysics
Astrophysics
14
Crab Nebula, Magnetohydrodynamic Stability, Pulsars, Pulsed Radiation, Relativistic Particles, X Ray Sources, Astronomical Models, High Energy Electrons, Light (Visible Radiation), Neutron Stars, Particle Beams, Plasma-Particle Interactions, Positrons, Synchrotron Radiation
Scientific paper
A physical mechanism based on transverse electromagnetic plasma instabilities is used to explain the origin of pulsed optical and X-ray radiation from the pulsar in the Crab Nebula. In the model, relativistic electrons or positrons counterstream or stream through an existing plasma; when the energy density of the beam exceeds the magnetic tension, the instabilities grow faster than competing electrostatic and firehose instabilities. Synchrotron radiation from the instability region produces the observed optical and X-ray pulses. Only young pulsars are expected to emit such pulses.
Hardee Philip E.
Rose William K.
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